DE60301831D1 - Capacitive keyboard with reduced ambiguity when typing - Google Patents

Capacitive keyboard with reduced ambiguity when typing

Info

Publication number
DE60301831D1
DE60301831D1 DE60301831T DE60301831T DE60301831D1 DE 60301831 D1 DE60301831 D1 DE 60301831D1 DE 60301831 T DE60301831 T DE 60301831T DE 60301831 T DE60301831 T DE 60301831T DE 60301831 D1 DE60301831 D1 DE 60301831D1
Authority
DE
Germany
Prior art keywords
key
signal
keyboard
typing
keys
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE60301831T
Other languages
German (de)
Other versions
DE60301831T2 (en
Inventor
Philipp Harald
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atmel Technologies UK Ltd
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of DE60301831D1 publication Critical patent/DE60301831D1/en
Publication of DE60301831T2 publication Critical patent/DE60301831T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
    • G06F3/0233—Character input methods
    • G06F3/0237—Character input methods using prediction or retrieval techniques
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/96—Touch switches
    • H03K17/962—Capacitive touch switches
    • H03K17/9622—Capacitive touch switches using a plurality of detectors, e.g. keyboard

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Electronic Switches (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)

Abstract

A method for removing keying ambiguity in a keyboard. Using capacitive proximity sensors, the signal strength from each of the keys of a keyboard is repeatedly measured, the signals being responsive to the degree of coupling between each key and a potential user digit. The measured signal strengths are compared with each other to find the strongest one. The key with the strongest signal is then deemed to be the user-selected key. After selection of a key in this way, signals from the other keys are suppressed or ignored for as long as the signal from the selected key remains above a threshold value. <IMAGE>
DE60301831T 2002-07-12 2003-07-11 Capacitive keyboard with reduced ambiguity in input Expired - Lifetime DE60301831T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US39536802P 2002-07-12 2002-07-12
US395368 2002-07-12

Publications (2)

Publication Number Publication Date
DE60301831D1 true DE60301831D1 (en) 2005-11-17
DE60301831T2 DE60301831T2 (en) 2006-08-10

Family

ID=30115862

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60301831T Expired - Lifetime DE60301831T2 (en) 2002-07-12 2003-07-11 Capacitive keyboard with reduced ambiguity in input

Country Status (4)

Country Link
US (1) US6993607B2 (en)
EP (1) EP1381160B8 (en)
AT (1) ATE306748T1 (en)
DE (1) DE60301831T2 (en)

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Also Published As

Publication number Publication date
EP1381160A1 (en) 2004-01-14
EP1381160B8 (en) 2006-01-18
ATE306748T1 (en) 2005-10-15
US20040008129A1 (en) 2004-01-15
DE60301831T2 (en) 2006-08-10
EP1381160B1 (en) 2005-10-12
US6993607B2 (en) 2006-01-31

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Legal Events

Date Code Title Description
8381 Inventor (new situation)

Inventor name: PHILIPP, HARALD, HAMPSHIRE SO31 4RH, GB

8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: QRG LTD., EASTLEIGH, HAMPSHIRE, GB